12125494 has 4 divisors (see below), whose sum is σ = 18188244. Its totient is φ = 6062746.

The previous prime is 12125489. The next prime is 12125497. The reversal of 12125494 is 49452121.

It is a semiprime because it is the product of two primes.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12125497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3031372 + ... + 3031375.

It is an arithmetic number, because the mean of its divisors is an integer number (4547061).

Almost surely, 2^12125494 is an apocalyptic number.

12125494 is a deficient number, since it is larger than the sum of its proper divisors (6062750).

12125494 is an equidigital number, since it uses as much as digits as its factorization.

12125494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6062749.

The product of its digits is 2880, while the sum is 28.

The square root of 12125494 is about 3482.1680028396. The cubic root of 12125494 is about 229.7381645436.

The spelling of 12125494 in words is "twelve million, one hundred twenty-five thousand, four hundred ninety-four".